分布式驱动电动汽车扭矩矢量控制仿真与验证(续Ⅰ)

Control and Verification of Twist Vector for Electric Vehicle(Continued Ⅰ)

在分析传统汽车ESP控制基础上,为了提高分布式驱动电动汽车主动安全性能,提出一种分布式驱动电机差扭的控制方法,对将要发生失稳汽车进行有效控制,使其快速进入稳定区,有效提高汽车主动安全性能。该方法通过理想横摆角速度和实际横摆角速度误差反馈调节来控制汽车运动状态。通过Simulink建立整车稳定性控制模型,结合Car Sim汽车动力学软件验证控制模型的有效性,并将控制模型编译成C代码在实车上进行调试验证,调试结果和仿真结果比较接近,符合预期控制效果,对分布式驱动电动汽车关键技术的形成和自主开发能力的提升具有指导意义。

On the basis of analyzing the traditional ESP, in order to improve the four-wheel independent drive EV active safety performance, a control methnd of four-wheel independent drive motor differential twist is described, it can control the unstable vehicle effectively, and can make a unstable vehicle come into the stable range, improving the ac.tive safety performance. This method will control vehicle movement state through adjusting the error between the ideal yaw velocity and the actual yaw velocity. Establishing the vehicle stability control model using Simulink based on CarSim to control the model effectiveness and make the model transfer into C code, and C code is adjusted and tested in the actual vehicle, the test results close to the simulation, reaching the control goal, providing guideline for the key technology development and the upgrading independent development ability.